支持访客实时输入草稿展示与联系方式自动识别

坐席输入框上方显示「对方正在输入」草稿；从草稿/消息提取手机微信邮箱QQ并追加入库，不覆盖已有联系方式。

server/internal/handler/router.go

@@ -5,6 +5,7 @@ import (
 	"kefu-cloud/server/internal/config"
 	"kefu-cloud/server/internal/middleware"
 	"kefu-cloud/server/internal/storage"
+	"kefu-cloud/server/internal/ws"
 )
 
 func SetupRoutes(r *gin.Engine, store storage.ObjectStorage, storageCfg config.StorageConfig) {
@@ -19,11 +20,13 @@ func SetupRoutes(r *gin.Engine, store storage.ObjectStorage, storageCfg config.S
 	channel := NewChannelHandler()
 	settings := NewSettingsHandler()
 	staff := NewStaffHandler()
-	ws := NewWsHandler()
+	wsHandler := NewWsHandler()
 	widget := NewWidgetHandler()
 	upload := NewUploadHandler(store, storageCfg)
 
 	SetImagePublicBase(storageCfg.PublicBase)
+	// 访客输入草稿 → 提取联系方式（由 ws 包回调，避免循环依赖）
+	ws.ProcessDraftContacts = onVisitorDraftContacts
 
 	api := r.Group("/api")
 
@@ -48,7 +51,7 @@ func SetupRoutes(r *gin.Engine, store storage.ObjectStorage, storageCfg config.S
 	authRequired.Use(middleware.AuthRequired())
 	{
 		// WebSocket
-		authRequired.GET("/ws", ws.Connect)
+		authRequired.GET("/ws", wsHandler.Connect)
 
 		// 上传
 		authRequired.POST("/uploads", upload.UploadImage)